math question-The product of all the positive factors of 20 ( including 20) can be written2^x.5^y. Find x+y. -The number 18 is equal to 2 times the sum of its digits: 1+8=9. 2x9=18. There are 4 two digit numbers that are equal to 4 times the sum of their digitss . Find 3 of those 4.
March 13, 2013

physicsa boat of mass 90 kg is floating in still water a body of mass 30 kg walks from the stern to the boat the length of the boat is 3m. calculate the distance through which the boat move.
December 12, 2012

physicsA circular plate of uniform thickness has a diameter of 56cm.A circular portion of diameter 42cm is removed from one edge of the plate .find the position of the center of mass of the remaining portion.
October 13, 2012

sociologyi have to write three pages on this topic i need ideas. PLEASE Peter Berger likens sociological discovery to culture shock minus geographical displacement. He also points out that as a sociologist we must peel away the layers of the world-taken-for-granted. What does Berger ...
September 25, 2012

physic What is the electromagnetic flux coming from the surface of a 2000K blackbody? (You must show your work for full credit
July 29, 2012

PHYSIC Which of the following objects was the first to be discovered by photographic method
July 29, 2012